Chao Albert insider trades
Chao Albert has filed 21 Form 4s with the SEC that we hold, all for Westlake Corp (WLK), as Executive Chairman, Director. Across all of them we count 1 purchase worth $258.6K and 18 sales worth $16.7M reported on Form 4. In the last 12 months: 0 purchases ($0) and 5 sales ($6.1M). The largest single trade was a sale of 20,815 shares of Westlake Corp worth $2.7M, dated 2022-05-19. The first filing on our record is dated 2021-08-12 and the latest 2026-08-11.
Westlake Corp (WLK)
| Trade date | Code | Shares | Value as filed | Filed | Source |
|---|---|---|---|---|---|
| 2021-08-11 | P, purchase reported on Form 4 | 3,000 | $258.6K | 2021-08-12 | SEC |
| 2021-12-01 | S, sale reported on Form 4 | 3,789 | $359.2K | 2021-12-03 | SEC |
| 2021-12-01 | S, sale reported on Form 4 | 5,842 | $536.5K | 2021-12-03 | SEC |
| 2021-12-01 | S, sale reported on Form 4 | 3,000 | $271.4K | 2021-12-03 | SEC |
| 2021-12-01 | S, sale reported on Form 4 | 4,300 | $404.1K | 2021-12-03 | SEC |
| 2021-12-01 | S, sale reported on Form 4 | 4,200 | $389.7K | 2021-12-03 | SEC |
| 2021-12-01 | S, sale reported on Form 4 | 9,656 | $863.9K | 2021-12-03 | SEC |
| 2021-12-02 | S, sale reported on Form 4 | 7,585 | $694.2K | 2021-12-06 | SEC |
| 2021-12-02 | S, sale reported on Form 4 | 20,327 | $1.9M | 2021-12-06 | SEC |
| 2021-12-02 | S, sale reported on Form 4 | 1,175 | $105.9K | 2021-12-06 | SEC |
| 2021-12-02 | S, sale reported on Form 4 | 1,700 | $151.7K | 2021-12-06 | SEC |
| 2022-05-19 | S, sale reported on Form 4 | 5,045 | $652.7K | 2022-05-23 | SEC |
| 2022-05-19 | S, sale reported on Form 4 | 20,815 | $2.7M | 2022-05-23 | SEC |
| 2022-05-19 | S, sale reported on Form 4 | 12,016 | $1.6M | 2022-05-23 | SEC |
| 2025-12-22 | S, sale reported on Form 4 | 521 | $38.8K | 2025-12-23 | SEC |
| 2025-12-22 | S, sale reported on Form 4 | 9,711 | $707.2K | 2025-12-23 | SEC |
| 2025-12-22 | S, sale reported on Form 4 | 30,604 | $2.3M | 2025-12-23 | SEC |
| 2026-08-11 | S, sale reported on Form 4 | 7,489 | $596.9K | 2026-08-11 | SEC |
| 2026-08-11 | S, sale reported on Form 4 | 31,384 | $2.5M | 2026-08-11 | SEC |
Counted from the Form 4 filings this reporting owner (SEC CIK 1299403) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

